iommufd: Fix typos in kernel-doc comments

Fix typos/spellos in kernel-doc comments for readability.

Fixes: aad37e7 ("iommufd: IOCTLs for the io_pagetable")
Fixes: b7a0855 ("iommu: Add new flag to explictly request PASID capable domain")
Fixes: d68beb2 ("iommu/arm-smmu-v3: Support IOMMU_HWPT_INVALIDATE using a VIOMMU object")
Link: https://patch.msgid.link/r/[email protected]
Signed-off-by: Randy Dunlap <[email protected]>
Acked-by: Nicolin Chen <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>

Author: rddunlap

include/uapi/linux/iommufd.h

@@ -297,7 +297,7 @@ struct iommu_ioas_unmap {
  *                       ioctl(IOMMU_OPTION_HUGE_PAGES)
  * @IOMMU_OPTION_RLIMIT_MODE:
  *    Change how RLIMIT_MEMLOCK accounting works. The caller must have privilege
- *    to invoke this. Value 0 (default) is user based accouting, 1 uses process
+ *    to invoke this. Value 0 (default) is user based accounting, 1 uses process
  *    based accounting. Global option, object_id must be 0
  * @IOMMU_OPTION_HUGE_PAGES:
  *    Value 1 (default) allows contiguous pages to be combined when generating
@@ -390,7 +390,7 @@ struct iommu_vfio_ioas {
  * @IOMMU_HWPT_ALLOC_PASID: Requests a domain that can be used with PASID. The
  *                          domain can be attached to any PASID on the device.
  *                          Any domain attached to the non-PASID part of the
- *                          device must also be flaged, otherwise attaching a
+ *                          device must also be flagged, otherwise attaching a
  *                          PASID will blocked.
  *                          If IOMMU does not support PASID it will return
  *                          error (-EOPNOTSUPP).
@@ -766,7 +766,7 @@ struct iommu_hwpt_vtd_s1_invalidate {
 };
 
 /**
- * struct iommu_viommu_arm_smmuv3_invalidate - ARM SMMUv3 cahce invalidation
+ * struct iommu_viommu_arm_smmuv3_invalidate - ARM SMMUv3 cache invalidation
  *         (IOMMU_VIOMMU_INVALIDATE_DATA_ARM_SMMUV3)
  * @cmd: 128-bit cache invalidation command that runs in SMMU CMDQ.
  *       Must be little-endian.